Chemical flue gas purification treatment equipment for environmental protection and treatment method thereof

Abstract

This invention relates to the field of chemical flue gas purification technology, and discloses a chemical flue gas purification and treatment device and method for environmental protection. After the chemical flue gas is fed into the tower, it first passes through a converging throat pipe. Simultaneously, spray heads treat the flue gas passing through the converging throat pipe. The treated flue gas then passes through an activated carbon filling layer, where it is treated again before being discharged. When the activated carbon filling layer needs to be replaced, an arc-shaped push plate rotates, simultaneously opening an electrically controlled door. The protruding surface of the arc-shaped push plate pushes the activated carbon to rotate, causing it to be discharged through the electrically controlled door using centrifugal force. Activated carbon is then replenished. This automatic discharge and replenishment of activated carbon eliminates the need for workers to wear protective clothing during operation, preventing workers from being in the potentially dangerous chemical flue gas purification equipment and improving equipment safety.

Description

Technical Field

[0001] This invention relates to the field of chemical flue gas purification technology, specifically to a chemical flue gas purification and treatment device and method for environmental protection. Background Technology

[0002] Waste gas refers to toxic and harmful gases emitted during human production and daily life. Industrial waste gas emitted by various production enterprises is a significant source of air pollutants. If large amounts of industrial waste gas are released into the atmosphere without treatment to meet standards, it will inevitably lead to a decline in air quality, serious harm to human health, and huge losses to the national economy. Chemical waste gas, in particular, requires purification equipment for flue gas treatment.

[0003] Existing purification equipment, such as Chinese patent CN112090240A, increases the contact surface area between the waste gas and the packing layer by filling with multi-faceted hollow spheres, which is beneficial to improving the purification effect of the waste gas. By setting several first nozzles to spray water mist onto the packing layer, a liquid film is formed on the packing. When the waste gas passes through the gaps in the packing layer, it comes into contact with the liquid film of the packing, allowing the liquid film to absorb impurities in the waste gas or undergo a neutralization reaction, thereby further improving the purification effect of the waste gas.

[0004] However, the following problems still exist: activated carbon is often used to fill the filling layer of the purification equipment. When using activated carbon, workers wearing protective clothing often enter the equipment to replace it. At this time, the continuous operation of the equipment poses a significant safety hazard to the workers. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an environmentally friendly chemical flue gas purification and treatment device and its treatment method. It features automatic discharge and replenishment of activated carbon during replacement, eliminating the need for workers to wear protective clothing during operation and preventing workers from being in hazardous chemical flue gas purification equipment, thus improving equipment safety. This invention also solves the problem that activated carbon is often used to fill the filling layer of purification equipment, and when replacing the activated carbon, workers often need to wear protective clothing to enter and replace it, posing a significant safety hazard to workers during continuous operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a chemical flue gas purification and treatment device for environmental protection, comprising a tower body, a purification mechanism disposed within the tower body, and an auxiliary mechanism disposed within the tower body. The purification mechanism includes a spray head and a converging throat. The spray head and the converging throat are disposed within the tower body, and the spray head is located above the converging throat. The spray head sprays the flue gas gathered by the converging throat for treatment.

[0007] The auxiliary mechanism includes an arc-shaped push plate and an electrically controlled opening and closing door. The arc-shaped push plate is installed inside the tower body and is located in the activated carbon filling layer. The electrically controlled opening and closing door is installed on the tower body and controls the communication between the inside and outside of the tower body. The arc-shaped push plate rotates when the activated carbon filling layer reaches its usage time. The electrically controlled opening and closing door opens when the arc-shaped push plate rotates, allowing the arc-shaped push plate to push the activated carbon out from the electrically controlled opening and closing door.

[0008] Preferably, the purification mechanism further includes a grid frame, which is fixedly installed at the upper end of the tower body. An activated carbon filling layer is placed on the grid frame. The grid size of the grid frame is smaller than the size of the activated carbon. The size of the grid frame is adapted to the internal cross-sectional size of the tower body. A gas guiding funnel is fixedly installed inside the tower body. The top end of the gas guiding funnel is adjacent to the bottom end of the grid frame. The top end size of the gas guiding funnel is the same as the size of the grid frame, and the bottom end size of the gas guiding funnel is smaller than the top end size.

[0009] Preferably, the spray head is fixedly installed inside the tower body, and the spray head is located below the air guiding funnel. The spray head has a ring structure, and the inner ring size of the spray head is larger than the bottom size of the air guiding funnel. A conical water guiding platform is fixedly installed inside the tower body, and the conical water guiding platform is located on the central axis of the tower body. The conical water guiding platform is connected to the tower body by connecting rods, and the conical water guiding platform guides the water falling from the spray head to the surrounding area.

[0010] Preferably, the reducing throat is fixedly installed inside the tower body, and the reducing throat is located below the conical water guide platform. The reducing throat has an hourglass shape, and its size is adapted to the interior of the tower body so that all gas flow inside the tower body passes through the interior of the reducing throat. A conical truncated disk is provided inside the reducing throat, and the conical truncated disk is located at the upper end of the reducing throat. There is a gap between the conical truncated disk and the reducing throat. A ring frame is fixedly installed inside the tower body, and the ring frame is located below the reducing throat. A shaft is provided on the ring frame, and the shaft of the ring frame passes through the interior of the reducing throat. The shaft of the ring frame is fixedly connected to the conical truncated disk.

[0011] Preferably, a water tank is fixedly installed next to the tower body. The water tank is used to store cleaning liquid. A water pump is fixedly installed on the water tank. The pump's suction end is connected to the water tank. A connecting pipe is provided on the pump's discharge end. One end of the connecting pipe is connected to the pump's discharge end, and the other end is connected to the spray head. An inlet pipe is fixedly installed on the water tank and is connected to the water tank. A drain pipe is fixedly installed on the water tank. One end of the drain pipe is connected to the water tank, and a manual valve is fixedly installed on the other end of the drain pipe. The manual valve is connected to the drain pipe.

[0012] Preferably, a water level detector is fixedly installed on the water tank and is connected to the water tank. The water level detector is used to detect the water level in the water tank. An exhaust port is provided at the top of the tower body for discharging the treated gas. An air inlet is provided at the bottom of the side wall of the tower body for introducing untreated chemical flue gas.

[0013] Preferably, the auxiliary mechanism further includes a first gear, and the arc-shaped push plate is rotatably fitted on the grid frame. The arc-shaped push plate has an arc-shaped structure, and its length is adapted to the radius of the tower body. The first gear is fixedly installed at the top of the shaft of the arc-shaped push plate, and an arc-shaped cover is fixedly installed on the shaft of the first gear. The arc-shaped cover has a conical structure, and its size is larger than that of the first gear.

[0014] Preferably, an activated carbon replenishment chamber is fixedly installed on the tower body, and a flow control valve is fixedly installed at the bottom of the activated carbon replenishment chamber. The top of the flow control valve is connected to the activated carbon replenishment chamber, and the bottom of the flow control valve penetrates the wall of the tower body and extends to the top of the arc-shaped cover.

[0015] Preferably, a stepper motor is fixedly installed on the tower body, a second gear is provided inside the tower body, the second gear is poweredly connected to the stepper motor, the second gear and the first gear are located at the same height, a chain is tensioned on the second gear and the first gear, an opening is provided on the tower body, the opening of the tower body is adjacent to the top of the grid frame, and an electrically controlled opening and closing door is provided on the tower body, the electrically controlled opening and closing door is opposite to the opening of the tower body, the electrically controlled opening and closing door is used to control the connection state of the opening of the tower body.

[0016] One treatment method, using the aforementioned environmental protection chemical flue gas purification equipment, includes the following steps:

[0017] S1: First, add the activated carbon filling layer into the tower body, and then send the chemical flue gas into the tower body;

[0018] S2: The chemical flue gas first passes through the converging throat pipe, and at the same time the spray head treats the chemical flue gas passing through the converging throat pipe.

[0019] S3: The treated flue gas passes through the activated carbon filling layer again, is treated by the activated carbon filling layer again, and is then discharged;

[0020] S4: When the activated carbon filling layer needs to be replaced, rotate the arc-shaped push plate and open the electrically controlled opening and closing door at the same time. The protruding surface of the arc-shaped push plate pushes the activated carbon to rotate, so that the activated carbon is discharged from the electrically controlled opening and closing door by centrifugal force, and then the activated carbon is replenished again.

[0021] Compared with the prior art, the present invention provides an environmental protection chemical flue gas purification and treatment device, which has the following beneficial effects:

[0022] 1. This environmental protection chemical flue gas purification equipment, after the chemical flue gas is sent into the tower body, will first pass through the receiving throat pipe. At the same time, the spray head will treat the chemical flue gas passing through the receiving throat pipe. The treated flue gas will then pass through the activated carbon filling layer, be treated again by the activated carbon filling layer, and then be discharged. When the activated carbon filling layer needs to be replaced, the arc-shaped push plate will rotate and the electrically controlled opening and closing door will be opened. The protruding surface of the arc-shaped push plate will push the activated carbon to rotate, so that the activated carbon will be discharged from the electrically controlled opening and closing door by centrifugal force. Then the activated carbon will be replenished. Thus, the activated carbon can be automatically discharged and replenished during the replacement of activated carbon, avoiding the need for workers to wear protective clothing to operate, preventing workers from being in the dangerous chemical flue gas purification equipment, and improving the safety of equipment use.

[0023] 2. This environmental protection chemical flue gas purification equipment, through the setting of manual control valve and water level detector, is affected by the continuous replenishment of cleaning fluid to the water tank through the inlet pipe. If the replenishment rate is greater than the usage rate, the manual control valve can be opened manually when the water level detector shows the warning line, and the opening size can be controlled. This keeps the rate of cleaning fluid replenishment and usage relatively balanced, avoiding unnecessary equipment failure.

[0024] 3. This environmental protection chemical flue gas purification equipment, through the setting of an arc-shaped hood, a first gear, a second gear, and a chain, ensures that the transmission structure in the tower body is not affected by the supplemented activated carbon. The activated carbon can be guided by the arc-shaped hood so that it does not come into contact with the first gear and the second gear, thus ensuring stable transmission of the transmission structure and improving the stability of equipment operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the internal structure distribution of the tower body of the present invention;

[0026] Figure 2This is a schematic diagram of the overall structure of the flue gas purification and treatment equipment of the present invention;

[0027] Figure 3 This is a schematic diagram of the purification mechanism structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the structural distribution at the conical water guide platform of the present invention;

[0029] Figure 5 This is a schematic diagram of the structural distribution at the air-guiding funnel of the present invention;

[0030] Figure 6 This is a schematic diagram of the internal structure distribution of the constriction throat of the present invention;

[0031] Figure 7 This is a schematic diagram of the structural distribution at the water pump of the present invention;

[0032] Figure 8 This is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0033] Figure 9 This is a schematic diagram of the structural distribution at the arc-shaped push plate of the present invention;

[0034] Figure 10 This is a schematic diagram of the structural distribution at the first gear of the present invention;

[0035] Figure 11 This is a schematic diagram of the structural distribution of the activated carbon replenishment chamber in this invention;

[0036] Figure 12 This is a schematic diagram of the structural distribution at the electrically controlled opening and closing door of the present invention.

[0037] In the diagram: 1. Tower body; 2. Purification mechanism; 21. Grid frame; 22. Air guide funnel; 23. Spray head; 24. Conical water guide platform; 25. Inlet throat; 26. Conical pedestal plate; 27. Ring frame; 28. Water tank; 29. ​​Water pump; 210. Connecting pipe; 211. Inlet pipe; 212. Drain pipe; 213. Manual valve; 214. Water level detector; 215. Exhaust port; 216. Air inlet; 3. Auxiliary mechanism; 31. Arc-shaped push plate; 32. First gear; 33. Arc-shaped cover; 34. Activated carbon replenishment chamber; 35. Quantity control valve; 36. Stepper motor; 37. Second gear; 38. Chain; 39. Electrically controlled opening and closing door. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an environmental protection chemical flue gas purification and treatment device and its treatment method.

[0040] Example 1, a typical implementation of this application, such as Figure 1 As shown, an environmental protection chemical flue gas purification and treatment device includes a tower body 1, a purification mechanism 2 installed in the tower body 1, and an auxiliary mechanism 3 installed in the tower body 1. The purification mechanism 2 includes a spray head 23 and a converging throat 25. The spray head 23 is installed in the tower body 1, and the converging throat 25 is installed in the tower body 1. The spray head 23 is located above the converging throat 25, and the spray head 23 sprays the flue gas gathered by the converging throat 25 for treatment.

[0041] The auxiliary mechanism 3 includes an arc-shaped push plate 31 and an electrically controlled opening and closing door 39. The arc-shaped push plate 31 is installed inside the tower body 1 and is located in the activated carbon filling layer. The electrically controlled opening and closing door 39 is installed on the tower body 1. The electrically controlled opening and closing door 39 controls the communication between the inside and outside of the tower body 1. The arc-shaped push plate 31 rotates when the activated carbon filling layer reaches its usage time. The electrically controlled opening and closing door 39 opens when the arc-shaped push plate 31 rotates, so that the arc-shaped push plate 31 pushes the activated carbon out from the electrically controlled opening and closing door 39.

[0042] When using this invention:

[0043] First, the activated carbon packing layer is added to the tower body 1, and then chemical flue gas is fed into the tower body 1. The chemical flue gas first passes through the reducing throat 25, and at the same time, the spray head 23 treats the chemical flue gas passing through the reducing throat 25. The treated flue gas then passes through the activated carbon packing layer, is treated again by the activated carbon packing layer, and is discharged. When the activated carbon packing layer needs to be replaced, the arc-shaped push plate 31 is rotated, and the electrically controlled opening and closing door 39 is opened at the same time. The protruding surface of the arc-shaped push plate 31 pushes the activated carbon to rotate, so that the activated carbon is discharged from the electrically controlled opening and closing door 39 by centrifugal force. Then, the activated carbon is replenished again. Thus, the activated carbon can be automatically discharged and replenished during the replacement of activated carbon, avoiding the need for workers to wear protective clothing to operate, preventing workers from being in the more dangerous chemical flue gas purification equipment, and improving the safety of equipment use.

[0044] Example 2, as Figures 2-7As shown, the difference from the above embodiment is that the purification mechanism 2 also includes a grid frame 21. The grid frame 21 is fixedly installed at the upper end of the tower body 1. An activated carbon filling layer is placed on the grid frame 21. The grid size of the grid frame 21 is smaller than the size of the activated carbon. The size of the grid frame 21 is adapted to the internal cross-sectional size of the tower body 1. An air guiding funnel 22 is fixedly installed inside the tower body 1. The top end of the air guiding funnel 22 is adjacent to the bottom end of the grid frame 21. The top end size of the air guiding funnel 22 is the same as the size of the grid frame 21. The bottom end size of the air guiding funnel 22 is smaller than the top end size of the air guiding funnel 22.

[0045] Furthermore, a spray head 23 is fixedly installed inside the tower body 1. The spray head 23 is located below the air guide funnel 22. The spray head 23 has a ring structure, and the inner ring size of the spray head 23 is larger than the bottom size of the air guide funnel 22. A conical water guide platform 24 is fixedly installed inside the tower body 1. The conical water guide platform 24 is located on the central axis of the tower body 1. The conical water guide platform 24 is connected to the tower body 1 around the perimeter by connecting rods. The conical water guide platform 24 guides the water falling from the spray head 23 to the surrounding area.

[0046] Furthermore, a reducing throat 25 is fixedly installed inside the tower body 1. The reducing throat 25 is located below the conical water guide platform 24. The reducing throat 25 has an hourglass shape and its size is adapted to the interior of the tower body 1, so that the gas flow inside the tower body 1 passes through the interior of the reducing throat 25. A conical truncated disk 26 is installed inside the reducing throat 25. The conical truncated disk 26 is located at the upper end of the reducing throat 25, and there is a gap between the conical truncated disk 26 and the reducing throat 25. A ring frame 27 is fixedly installed inside the tower body 1. The ring frame 27 is located below the reducing throat 25. A shaft is provided on the ring frame 27. The shaft of the ring frame 27 passes through the interior of the reducing throat 25, and the shaft of the ring frame 27 is fixedly connected to the conical truncated disk 26.

[0047] Furthermore, a water tank 28 is fixedly installed next to the tower body 1. The water tank 28 is used to store cleaning liquid. A water pump 29 is fixedly installed on the water tank 28. The water pump 29's suction end is connected to the water tank 28. A connecting pipe 210 is installed on the water pump 29's discharge end. One end of the connecting pipe 210 is connected to the water pump 29's discharge end, and the other end of the connecting pipe 210 is connected to the spray head 23. A water inlet pipe 211 is fixedly installed on the water tank 28 and is connected to the water tank 28. A drain pipe 212 is fixedly installed on the water tank 28. One end of the drain pipe 212 is connected to the water tank 28, and a manual control valve 213 is fixedly installed on the other end of the drain pipe 212 and is connected to the drain pipe 212.

[0048] Furthermore, a water level detector 214 is fixedly installed on the water tank 28. The water level detector 214 is connected to the water tank 28 and is used to detect the water level in the water tank 28. An exhaust port 215 is opened at the top of the tower body 1. The exhaust port 215 is used to discharge the treated gas. An air inlet 216 is opened at the bottom of the side wall of the tower body 1. The air inlet 216 is used to send in untreated chemical flue gas.

[0049] Furthermore, the exhaust port 215 can be connected to a pipeline to send the treated chemical flue gas to other equipment for further treatment, and the air inlet 216 can be connected to an air pump to send the untreated chemical flue gas into the tower body 1.

[0050] In the process of treating chemical flue gas, water pump 29 is started to draw cleaning liquid from water tank 28. Simultaneously, water inlet pipe 211 replenishes cleaning liquid into water tank 28. The cleaning liquid flows from water pump 29 into connecting pipe 210, and then from connecting pipe 210 into spray head 23, from which it is sprayed out. The chemical flue gas then enters tower body 1 through inlet 216 and flows upward to the converging throat 25. The converging throat 25 gathers and conveys the chemical flue gas, ensuring that all of it passes through. Simultaneously, the chemical flue gas is restricted by the conical truncated plate 26 as it passes through the conical truncated plate 26 and the converging throat 25. The cleaning liquid sprayed by the spray head 23 falls onto the conical guide platform 24. The conical guide platform 24 guides the cleaning liquid between the conical plate 26 and the converging throat 25, so that the cleaning liquid can treat the chemical flue gas between the conical plate 26 and the converging throat 25. Then the chemical flue gas passes around the conical guide platform 24. At this time, the chemical flue gas can only flow to the bottom of the guide funnel 22, so that the chemical flue gas passes through the cleaning liquid just sprayed by the spray head 23 again. Then the chemical flue gas passes through the guide funnel 22 and through the grid frame 21. The chemical flue gas enters the activated carbon filling layer, and the activated carbon filling layer performs final treatment on the chemical flue gas. The chemical flue gas after all treatment is discharged from the exhaust port 215.

[0051] Example 3, as Figures 8-12 As shown, the difference from the above embodiment is that the auxiliary mechanism 3 also includes a first gear 32, an arc-shaped push plate 31 is rotatably fitted on the grid frame 21, the arc-shaped push plate 31 has an arc-shaped structure, the length of the arc-shaped push plate 31 is adapted to the radius inside the tower body 1, the first gear 32 is fixedly installed at the top of the shaft of the arc-shaped push plate 31, and an arc-shaped cover 33 is fixedly installed on the shaft of the first gear 32, the arc-shaped cover 33 has a conical structure, and the size of the arc-shaped cover 33 is larger than the size of the first gear 32.

[0052] Furthermore, an activated carbon replenishment chamber 34 is fixedly installed on the tower body 1. A flow control valve 35 is fixedly installed at the bottom of the activated carbon replenishment chamber 34. The top of the flow control valve 35 is connected to the activated carbon replenishment chamber 34, and the bottom of the flow control valve 35 penetrates the wall of the tower body 1 and extends to the top of the arc-shaped cover 33.

[0053] Furthermore, a climbing frame can be installed on the tower body 1, allowing workers to maintain the equipment. A conveyor belt can also be installed on the tower body 1 to deliver new activated carbon into the activated carbon replenishment chamber 34.

[0054] Furthermore, a stepper motor 36 is fixedly installed on the tower body 1, and a second gear 37 is provided inside the tower body 1. The second gear 37 is poweredly connected to the stepper motor 36. The second gear 37 and the first gear 32 are located at the same height. A chain 38 is tensioned on the second gear 37 and the first gear 32. An opening is provided on the tower body 1, which is adjacent to the top of the grid frame 21. An electrically controlled opening and closing door 39 is provided on the tower body 1, which is opposite to the opening of the tower body 1. The electrically controlled opening and closing door 39 is used to control the connection state of the opening of the tower body 1.

[0055] When activated carbon needs to be replenished, stepper motor 36 is started, which drives second gear 37 to rotate. Second gear 37 drives chain 38 to rotate, chain 38 drives first gear 32 to rotate, and first gear 32 drives arc-shaped push plate 31 to rotate. The protruding surface of arc-shaped push plate 31 pushes the activated carbon on grid frame 21 to rotate. At the same time, electrically controlled opening and closing door 39 is started, which switches the opening of tower body 1 to a connected state. As the arc-shaped push plate 31 pushes the activated carbon to rotate, the centrifugal force of rotation causes the activated carbon to be discharged from the electrically controlled opening and closing door 39. After the activated carbon is discharged, the electrically controlled opening and closing door 39 is closed, the rotation of arc-shaped push plate 31 is stopped, and the flow control valve 35 is opened, allowing the activated carbon in activated carbon replenishment chamber 34 to fall through the flow control valve 35 onto arc-shaped cover 33. The arc-shaped cover 33 guides the activated carbon to various positions on grid frame 21, thus completing the replenishment of activated carbon filling layer.

[0056] Working principle of the invention:

[0057] First, the activated carbon packing layer is added to the tower body 1, and then chemical flue gas is sent into the tower body 1. The chemical flue gas first passes through the reducing throat 25, and at the same time, the spray head 23 treats the chemical flue gas passing through the reducing throat 25. The treated flue gas then passes through the activated carbon packing layer, is treated again by the activated carbon packing layer, and is discharged. When the activated carbon packing layer needs to be replaced, the arc-shaped push plate 31 is rotated, and the electrically controlled opening and closing door 39 is opened at the same time. The protruding surface of the arc-shaped push plate 31 pushes the activated carbon to rotate, so that the activated carbon is discharged from the electrically controlled opening and closing door 39 by centrifugal force. Then the activated carbon is replenished again. Thus, the activated carbon can be automatically discharged and replenished during the replacement of activated carbon, avoiding the need for workers to wear protective clothing to operate, preventing workers from being in the more dangerous chemical flue gas purification equipment, and improving the safety of equipment use.

[0058] In the process of treating chemical flue gas, water pump 29 is started to draw cleaning liquid from water tank 28. Simultaneously, water inlet pipe 211 replenishes cleaning liquid into water tank 28. The cleaning liquid flows from water pump 29 into connecting pipe 210, and then from connecting pipe 210 into spray head 23, from which it is sprayed out. The chemical flue gas then enters tower body 1 through inlet 216 and flows upward to the converging throat 25. The converging throat 25 gathers and conveys the chemical flue gas, ensuring that all of it passes through. Simultaneously, the chemical flue gas is restricted by the conical truncated plate 26 as it passes through the conical truncated plate 26 and the converging throat 25. The cleaning liquid sprayed by the spray head 23 falls onto the conical guide platform 24. The conical guide platform 24 guides the cleaning liquid between the conical plate 26 and the converging throat 25, so that the cleaning liquid can treat the chemical flue gas between the conical plate 26 and the converging throat 25. Then the chemical flue gas passes around the conical guide platform 24. At this time, the chemical flue gas can only flow to the bottom of the guide funnel 22, so that the chemical flue gas passes through the cleaning liquid just sprayed by the spray head 23 again. Then the chemical flue gas passes through the guide funnel 22 and through the grid frame 21. The chemical flue gas enters the activated carbon filling layer, and the activated carbon filling layer performs final treatment on the chemical flue gas. The chemical flue gas after all treatment is discharged from the exhaust port 215.

[0059] When activated carbon needs to be replenished, the stepper motor 36 is started, which drives the second gear 37 to rotate. The second gear 37 drives the chain 38 to rotate, which drives the first gear 32 to rotate. The first gear 32 drives the arc-shaped push plate 31 to rotate, causing the protruding surface of the arc-shaped push plate 31 to push the activated carbon on the grid frame 21 to rotate. At the same time, the electrically controlled opening and closing door 39 is started, which switches the opening of the tower body 1 to a connected state. As the arc-shaped push plate 31 pushes the activated carbon to rotate, the centrifugal force of rotation causes the activated carbon to be discharged from the electrically controlled opening and closing door 39. After the activated carbon is discharged, the electrically controlled opening and closing door 39 is closed, the rotation of the arc-shaped push plate 31 is stopped, and the flow control valve 35 is opened, allowing the activated carbon in the activated carbon replenishment chamber 34 to fall through the flow control valve 35 onto the arc-shaped cover 33. The arc-shaped cover 33 then guides the activated carbon to various positions on the grid frame 21, thus completing the replenishment of the activated carbon filling layer.

[0060] One treatment method, using the aforementioned environmental protection chemical flue gas purification equipment, includes the following steps:

[0061] S1: First, add the activated carbon packing layer into tower body 1, and then send the chemical flue gas into tower body 1;

[0062] S2: The chemical flue gas first passes through the reducing throat 25, and at the same time the spray head 23 treats the chemical flue gas passing through the reducing throat 25.

[0063] S3: The treated flue gas passes through the activated carbon filling layer again, is treated by the activated carbon filling layer again, and is then discharged;

[0064] S4: When the activated carbon filling layer needs to be replaced, rotate the arc-shaped push plate 31 and open the electrically controlled opening and closing door 39 at the same time. The protruding surface of the arc-shaped push plate 31 pushes the activated carbon to rotate, so that the activated carbon is discharged from the electrically controlled opening and closing door 39 by centrifugal force. Then, the activated carbon is replenished again.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical flue gas purification and treatment device for environmental protection, comprising a tower body, a purification mechanism disposed within the tower body, and an auxiliary mechanism disposed within the tower body, characterized in that: The purification mechanism includes a spray head and a converging throat. The spray head is installed inside the tower body, and the converging throat is installed inside the tower body. The spray head is located above the converging throat and sprays the flue gas gathered by the converging throat. The auxiliary mechanism includes an arc-shaped push plate and an electrically controlled opening and closing door. The arc-shaped push plate is installed inside the tower body and is located in the activated carbon filling layer. The electrically controlled opening and closing door is installed on the tower body and controls the communication between the inside and outside of the tower body. The arc-shaped push plate rotates when the activated carbon filling layer reaches its usage time. The electrically controlled opening and closing door opens when the arc-shaped push plate rotates, so that the arc-shaped push plate pushes the activated carbon out from the electrically controlled opening and closing door. The purification mechanism also includes a grid frame, which is fixedly installed at the upper end of the tower body. An activated carbon filling layer is placed on the grid frame. The grid size of the grid frame is smaller than the size of the activated carbon. The size of the grid frame is adapted to the internal cross-sectional size of the tower body. A gas guiding funnel is fixedly installed inside the tower body. The top end of the gas guiding funnel is adjacent to the bottom end of the grid frame. The top end size of the gas guiding funnel is the same as the size of the grid frame, and the bottom end size of the gas guiding funnel is smaller than the top end size. The spray head is fixedly installed inside the tower body. The spray head is located below the air guiding funnel. The spray head has a ring structure, and the inner ring size of the spray head is larger than the bottom size of the air guiding funnel. A conical water guiding platform is fixedly installed inside the tower body. The conical water guiding platform is located on the central axis of the tower body. The conical water guiding platform is connected to the tower body by connecting rods. The conical water guiding platform guides the water falling from the spray head to the surrounding area. The reducing throat is fixedly installed inside the tower body. The reducing throat is located below the conical water guide platform. The reducing throat has an hourglass shape and its size is adapted to the interior of the tower body so that all gas flow inside the tower body passes through the reducing throat. A conical truncated disk is installed inside the reducing throat. The conical truncated disk is located at the upper end of the reducing throat. There is a gap between the conical truncated disk and the reducing throat. A ring frame is fixedly installed inside the tower body. The ring frame is located below the reducing throat. A shaft is provided on the ring frame. The shaft of the ring frame passes through the interior of the reducing throat. The shaft of the ring frame is fixedly connected to the conical truncated disk.

2. The chemical flue gas purification and treatment equipment for environmental protection according to claim 1, characterized in that: A water tank is fixedly installed next to the tower body. The water tank is used to store cleaning solution. A water pump is fixedly installed on the water tank. The pump's suction end is connected to the water tank. A connecting pipe is provided on the pump's discharge end. One end of the connecting pipe is connected to the pump's discharge end, and the other end is connected to the spray head. A water inlet pipe is fixedly installed on the water tank and is connected to the water tank. A drain pipe is fixedly installed on the water tank. One end of the drain pipe is connected to the water tank, and a manual valve is fixedly installed on the other end of the drain pipe. The manual valve is connected to the drain pipe.

3. The chemical flue gas purification and treatment equipment for environmental protection according to claim 2, characterized in that: A water level detector is fixedly installed on the water tank and is connected to the water tank. The water level detector is used to detect the water level in the water tank. An exhaust port is opened at the top of the tower body to discharge the treated gas. An air inlet is opened at the bottom of the side wall of the tower body to introduce untreated chemical flue gas.

4. The chemical flue gas purification and treatment equipment for environmental protection according to claim 3, characterized in that: The auxiliary mechanism also includes a first gear, and the arc-shaped push plate is rotatably fitted on the grid frame. The arc-shaped push plate has an arc-shaped structure, and its length is adapted to the radius of the tower body. The first gear is fixedly installed at the top of the shaft of the arc-shaped push plate, and an arc-shaped cover is fixedly installed on the shaft of the first gear. The arc-shaped cover has a conical structure, and its size is larger than that of the first gear.

5. The chemical flue gas purification and treatment equipment for environmental protection according to claim 4, characterized in that: An activated carbon replenishment chamber is fixedly installed on the tower body. A flow control valve is fixedly installed at the bottom of the activated carbon replenishment chamber. The top of the flow control valve is connected to the activated carbon replenishment chamber, and the bottom of the flow control valve penetrates the wall of the tower body and extends to the top of the arc-shaped cover.

6. The chemical flue gas purification and treatment equipment for environmental protection according to claim 5, characterized in that: A stepper motor is fixedly installed on the tower body. A second gear is installed inside the tower body and is poweredly connected to the stepper motor. The second gear and the first gear are located at the same height. A chain is tensioned on the second gear and the first gear. An opening is provided on the tower body, which is adjacent to the top of the grid frame. An electrically controlled opening and closing door is provided on the tower body, which is opposite to the opening of the tower body. The electrically controlled opening and closing door is used to control the connection status of the opening of the tower body.

7. A treatment method using the chemical flue gas cleaning treatment apparatus for environmental protection according to claim 6, characterized by, Includes the following steps: S1: First, add the activated carbon filling layer into the tower body, and then send the chemical flue gas into the tower body; S2: The chemical flue gas first passes through the converging throat pipe, and at the same time the spray head treats the chemical flue gas passing through the converging throat pipe. S3: The treated flue gas passes through the activated carbon filling layer again, is treated by the activated carbon filling layer again, and is then discharged; S4: When the activated carbon filling layer needs to be replaced, rotate the arc-shaped push plate and open the electrically controlled opening and closing door at the same time. The protruding surface of the arc-shaped push plate pushes the activated carbon to rotate, so that the activated carbon is discharged from the electrically controlled opening and closing door by centrifugal force, and then the activated carbon is replenished again.

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